CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	6 Months Ended
Mar. 28, 2015	Mar. 29, 2014
Cash and cash equivalents, beginning of the period	$ 13,844	$ 14,259
Operating activities:
Net income	31,593us-gaap_NetIncomeLoss	23,295us-gaap_NetIncomeLoss
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation and amortization	5,054	4,031
Share-based compensation expense	1,815us-gaap_ShareBasedCompensation	1,377us-gaap_ShareBasedCompensation
Deferred income tax expense	1,879us-gaap_DeferredIncomeTaxExpenseBenefit	2,059us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in operating assets and liabilities:
Accounts receivable, net	6,555	3,401
Inventories	(285)us-gaap_IncreaseDecreaseInInventories	(65)us-gaap_IncreaseDecreaseInInventories
Vendor non-trade receivables	2,500	1,419
Other current and non-current assets	2,448	14
Accounts payable	(5,428)	(2,375)
Deferred revenue	993	1,414
Other current and non-current liabilities	5,679	1,638
Cash generated by operating activities	52,803	36,208
Investing activities:
Purchases of marketable securities	(92,523)	(90,360)
Proceeds from maturities of marketable securities	5,871	10,869
Proceeds from sales of marketable securities	48,924	80,241
Payments made in connection with business acquisitions, net	(115)	(559)
Payments for acquisition of property, plant and equipment	(5,586)	(3,367)
Payments for acquisition of intangible assets	(155)	(163)
Other	88	(23)
Cash used in investing activities	(43,496)	(3,362)
Financing activities:
Proceeds from issuance of common stock	309	341
Excess tax benefits from equity awards	357	363
Taxes paid related to net share settlement of equity awards	(608)	(430)
Dividends and dividend equivalents paid	(5,544)	(5,430)
Repurchase of common stock	(12,000)	(23,000)
Proceeds from issuance of long-term debt, net	11,332	0
Repayments of commercial paper, net	(2,508)	0
Cash used in financing activities	(8,662)	(28,156)
Increase in cash and cash equivalents	645	4,690
Cash and cash equivalents, end of the period	14,489	18,949
Supplemental cash flow disclosure:
Cash paid for income taxes, net	7,058us-gaap_IncomeTaxesPaidNet	5,369us-gaap_IncomeTaxesPaidNet
Cash paid for interest	$ 220us-gaap_InterestPaid	$ 161us-gaap_InterestPaid

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The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

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The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 230

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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